*SUPPORT*
IN: lug kiki OUT: GREEN GREEN GREEN
IN: lug OUT: GREEN
IN: dax gazzer dax OUT: BLUE BLUE BLUE BLUE BLUE
IN: blicket OUT: RED
IN: blicket dax fep kiki OUT: RED BLUE PURPLE PURPLE PURPLE
IN: lug gazzer dax OUT: BLUE GREEN BLUE BLUE BLUE
IN: blicket kiki OUT: RED RED RED
IN: fep lug kiki OUT: PURPLE GREEN GREEN GREEN
IN: lug gazzer lug OUT: GREEN GREEN GREEN GREEN GREEN
IN: blicket gazzer dax OUT: BLUE RED BLUE BLUE BLUE
IN: dax OUT: BLUE
IN: blicket lug kiki OUT: RED GREEN GREEN GREEN
IN: dax blicket OUT: BLUE RED
IN: dax dax gazzer lug OUT: BLUE GREEN BLUE GREEN GREEN GREEN

*QUERY*
IN: fep dax gazzer lug OUT: PURPLE GREEN BLUE GREEN GREEN GREEN
IN: blicket fep gazzer lug OUT: RED GREEN PURPLE GREEN GREEN GREEN
IN: fep kiki OUT: PURPLE PURPLE PURPLE
IN: dax kiki OUT: BLUE BLUE BLUE
IN: fep gazzer blicket OUT: RED PURPLE RED RED RED
IN: dax gazzer fep OUT: PURPLE BLUE PURPLE PURPLE PURPLE
IN: fep gazzer fep OUT: PURPLE PURPLE PURPLE PURPLE PURPLE
IN: blicket lug OUT: RED GREEN
IN: fep OUT: PURPLE
IN: blicket gazzer blicket OUT: RED RED RED RED RED

*GRAMMAR*
lug -> GREEN 
 blicket -> RED 
 dax -> BLUE 
 fep -> PURPLE 
 u1 kiki -> [u1] [u1] [u1] 
 u1 gazzer u2 -> [u2] [u1] [u2] [u2] [u2] 
 x1 tufa x2 -> [x2] [x1] [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 